Global concern over fertiliser supply chains has again highlighted a hard truth for Australian agriculture: we rely heavily on imported nutrients to sustain production. Our level of dependence leaves farmers exposed to the type of freight disruptions, currency movement and geopolitical shock the war between America, Israel and Iran has recently instigated.

Australia may import fertiliser, but at the same time, we allow valuable nutrients to leave productive systems every day. The real opportunity is not simply securing more fertiliser. It is building better nutrient cycling.